one is a format tool that helps giving a more readable view of your tables, in editing mode; unfortunately, your edit panel must be using a fixed-size font (which it is not the case by default on my system)

the most interesting addition, though, is the support of SCM tools to store wiki pages

This one is interesting, because it allows you to have different configurations for different hierarchies of pages (typically one for each different projects, or even for different versions of the same project).

The bad news, though, is that the CM System Integration class in question is not provided by default, though I’m sure that in time there will be all sorts of appropriate integration classes provided with Fitnesse. But that’s not the case so far (except for an example made to connect to Git — not sure how generic it is). That said, it does seem quite easy to implement that class (you basically need to implement calls to the command line in Java).

You might want to download the Fitnesse release and check out the FitNesse.UserGuide.SourceCodeControl page. As often with Fitnesse, the website does not have the latest details.